EEP Crowned pigeon number 4

EEP STUDBOOK CROWNED PIGEONS SUMMARIES
1.4 Summary of the selected management data
for Goura victoria EEP
Age distribution (See 5.1)
The age of 99 individuals (51.5 males and 47.5 females) in the current population was known
on 31 December 1999. The age of 8 male specimens and 22 female specimens were unknown.
There was 1 unknown sex specimen of unknown age.
Current population (See 5.2)
The current population as of 31 December 1999 of the Goura victoria species consists of
49.57.21 (total: 127).
Number of births and deaths (See 5.3 and 5.4)
In 1995, 20 Goura victoria crowned pigeons were born and 9 died.
In 1996, 12 Goura victoria crowned pigeons were born and 8 died.
In 1997, 8 Goura victoria crowned pigeons were born and 3 died.
In 1998, 20 Goura victoria crowned pigeons were born and 16 died.
In 1999, 16 Goura victoria crowned pigeons were born and 18 died.
Age of individuals at death during the period 1995 – 1999
Age 0-30d 30d-1y 1 + -5y 5 + –10y 10 + -15y 15 + –20y 20 + y Total
Est. 0 0 1 4 2 5 3 15
Known 14 4 6 11 4 0 0 39
Total 14 4 7 15 6 5 3 54
Est. = estimated age, or minimum age, based on date of arrival
Known = age known
Estimated ages are based on dates of arrival, thus the age at death for estimated age could be
higher. The 0-30 day group comprised 25,9 % of all deaths. This is quite high. The 5 + –10y
age category is also very high, this group comprised 27,8 % of all deaths.
Transfers, Imports and Exports (See 5.5)
10 transfers were made in 1995, 29 in 1996, 3 in 1997, 14 in 1998 and 7 in 1999.
There were 3 crowned pigeons transfered to unknown institutes at unknown dates.
Conclusion
In 1995, 1996, 1997 and 1998 the births exceeded the deaths. Unfortunately in 1999 the
deaths exceeded the number of births.
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